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_____________ contains one-way valves that prevent the backflow of blood.  These vessels transport blood back to the heart.

The greatest drop in blood velocity occurs in the ____________.

72 kg = _____________ lbs.     (round to the nearest tenth)   Provide numerical (number) answer only.

Two students studying physiology taste a known “bitter” substance, and both report sensing bitterness. They then sample another substance. Student A reports sensing both a bitter taste and a salty taste, but student B reports only a salty taste. What is the most logical explanation?

The myelin sheath is produced by _____________ in the central nervous system.

Evaluate the integral using the given substitution.   Substitute     

The functional unit of a muscle is called a ________________.

The smallest blood vessels is the ______________.  It has the thinnest walls and is the site of nutrient, gas, and waste exchange.

Normal blood is mostly composed of:

This type of sensory receptor detects physical deformations caused by stimuli such as pressure, motion, stretch, and sound.